Patent applications are worldwide patent applications filed through the Patent Cooperation Treaty procedure or with a national patent office.
| Date | Valeur | Modifier , % |
|---|---|---|
| 1996 | 12 | 100,00 % |
| 1995 | 6 | -40,00 % |
| 1994 | 10 | -33,33 % |
| 1993 | 15 | -40,00 % |
| 1991 | 25 | 150,00 % |
| 1990 | 10 | 233,33 % |
| 1989 | 3 |